低温等离子体法处理电厂锅炉EDTA清洗废水实验研究  

TREATMENT OF ACID PICKLE WASTEWATER FROM POWER PLANT BOILER BY LOW TEMPERATURE PLASMA

作　　者：袁渭军 张文治[2] 张改[2] 赵菁[2] 

机构地区：[1]西安协力动力科技有限公司,710119 [2]西安工业大学,陕西西安710021

出　　处：《水处理技术》2015年第6期91-95,共5页Technology of Water Treatment

基　　金：国家自然科学基金(51303147);陕西省自然科学基础研究计划项目(2014JQ2080);陕西省教育厅专项科研计划项目(2013JK0929)

摘　　要：使用介质阻挡放电和脉冲电晕放电2种低温等离子体对电厂锅炉乙二胺四乙酸二钠(EDTA)清洗废水进行处理,采用COD降解率、色度去除率为评价指标,探寻放电功率、电介质间距(介质阻挡放电)/电极间距(脉冲电晕放电)、放电时间、处理量等因素对COD降解率及色度去除率性能的影响。结果表明,当放电功率为15 k W,电介质间距/电极间距为5 mm时,2 h可使电厂锅炉EDTA清洗废水COD降解率70%以上、色度去除率90%以上。Dielectric barrier discharge and pulse corona discharge low temperature plasma were used to treat acid pickle wastewater from power plant boiler. The degradation rate of COD and the removal rate of chroma were selected as evaluation index. The effects of discharge power, the air gaps （DBD）/ electrode gaps （pulse corona discharge）, discharge time, the amount of processing on the degradation rate of COD and the removal rate of chroma were studied. The results showed that when the discharge power was 15 kW and the air gaps/electrode gaps were 5 mm, the removal rates of COD and chroma reached more than 70% and 90% respectivily in 2 h.

关 键 词：低温等离子体 乙二胺四乙酸二钠(EDTA) 清洗废水 处理 

分 类 号：X773[环境科学与工程—环境工程]